This product may be used in gasoline or diesel fuels. When used in diesel fuels, the following statement applies: This diesel fuel formula complies with the federal low sulfur content requirements for use in diesel motor vehicles and nonroad engines.

For orders outside the United States and its territories, call 1-800-382-1858

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"I have been using zMax in all my cars for at least the last 20 years. (Fuel, engine & transmission) Now I know why. I was driving on the freeway doing 70 when my radiator hose broke. I lost all the water in my engine. I ended up driving the car for over an hour without any water. Thanks to zMax the engine never seized. I got to where I was going and bought a replacement hose, replaced the water and all was fine. I was good to go. I always put zMax in all my cars always!!! I am a confirmed believer!!!!"